A puppy who was so obese it could barely walk is looking for a new home after shedding around 15kg.

Tootsie the black Labrador was double the weight he should have been and suffering with a painful knee injury as a result when he was brought to the Mayhew animal welfare charity earlier this year, aged just 12 months.

Five months later he’s svelte and slim line after going under the knife, changing his diet and even going on a course of hydrotherapy sessions.